Kristen Bell has made hearts melt yet again. Entertainment Weekly reported the exchange that took place this week with 6-year-old Avery Huffman who is currently battling cancer. Avery’s journey has been chronicled via Twitter using the hashtag #AveryStrong to update the accounts 20,384 followers on her progress. Bell called and left a voicemail for her in the voice of her Frozen character, Anna, letting Huffman know that she has been dubbed an honorary princess of Arandelle. She also lets her know that she has been such a good girl and so brave. The sweet moment was captured and put on YouTube, causing it to go viral.